scholarly journals THE EFFERENT PATHWAY OF EPILEPTIC SEIZURES FOR THE FACE FOLLOWING CORTICAL STIMULATION DIFFERS FROM THAT FOR LIMBS

1952 ◽  
Vol 3 ◽  
pp. 306-321 ◽  
Author(s):  
TAKASHI HAYASHI
2021 ◽  
Vol 122 ◽  
pp. 108125
Author(s):  
Eloise Hotolean ◽  
Laure Mazzola ◽  
Sylvain Rheims ◽  
Jean Isnard ◽  
Alexandra Montavont ◽  
...  

2011 ◽  
Vol 69 (3) ◽  
pp. 491-495 ◽  
Author(s):  
Eduardo Ruocco Nonato ◽  
Moacir Alves Borges

OBJECTIVE: This study aimed to evaluate oral and maxillofacial trauma caused by falls during epileptic seizures. METHOD: A prospective case-control study was carried out among patients recruited from both the Epileptic Outpatient Clinic and the Emergency Room of Hospital de Base during 2006. The study group was composed of patients with epilepsy that had been diagnosed by a specialist. Oral and maxillofacial trauma was diagnosed using a questionnaire together with physical and radiographic examinations. A control group was formed from non-epileptic relatives or neighbors of the patients. The two groups were compared with regard to the number and type of oral and maxillofacial trauma events suffered. Odds ratios with a 95% confidence interval, dependency analysis and the Pearson c² test were used for statistical analysis, and the significance level was set at p≤0.05. RESULTS: A total of 159 patients with epilepsy (91 males; 57.3%) and 68 control individuals (28 males; 41.1%) were enrolled in the study. The frequencies of oromaxillary trauma in the study and control groups were 23.9% and 4.4%, respectively. Generalized tonic-clonic, generalized and non-classified seizures were strongly associated with trauma. The commonest lesions were fractures of dental tooth crowns (32.9%), followed by tooth avulsion (7.6%), tooth luxation (5%) and fracturing of prostheses in edentulous patients (3.8%). CONCLUSION: This work shows that injuries to the face and teeth are statistically more common in patients with epilepsy than in the general population, and that individuals who suffer seizures without aura are the most affected.


2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Todd Kanzara ◽  
Jagdeep Singh Virk ◽  
Sanjiv Chawda ◽  
Anthony O. Owa

We report a case of a petrous apex cholesteatoma which was managed with a wholly endoscopic permeatal approach. A 63-year-old Caucasian male presented with a 10-year history of right-sided facial palsy and profound deafness. On examination in our clinic, the patient had a grade VI House-Brackmann paresis, otoscopic evidence of attic cholesteatoma behind an intact drum, and extensive scarring of the face from previous facial reanimation surgery. Imaging review was suggestive of petrous apex cholesteatoma. An initial decision to manage the patient conservatively was later reviewed on account of the patient suffering recurrent epileptic seizures. A wholly endoscopic permeatal approach was used with successful outcomes. In addition to the case report we also provide a brief description of the technique and a review of the relevant literature.


2018 ◽  
Vol 41 ◽  
Author(s):  
Samuel G. B. Johnson

AbstractZero-sum thinking and aversion to trade pervade our society, yet fly in the face of everyday experience and the consensus of economists. Boyer & Petersen's (B&P's) evolutionary model invokes coalitional psychology to explain these puzzling intuitions. I raise several empirical challenges to this explanation, proposing two alternative mechanisms – intuitive mercantilism (assigning value to money rather than goods) and errors in perspective-taking.


1997 ◽  
Vol 161 ◽  
pp. 203-218 ◽  
Author(s):  
Tobias C. Owen

AbstractThe clear evidence of water erosion on the surface of Mars suggests an early climate much more clement than the present one. Using a model for the origin of inner planet atmospheres by icy planetesimal impact, it is possible to reconstruct the original volatile inventory on Mars, starting from the thin atmosphere we observe today. Evidence for cometary impact can be found in the present abundances and isotope ratios of gases in the atmosphere and in SNC meteorites. If we invoke impact erosion to account for the present excess of129Xe, we predict an early inventory equivalent to at least 7.5 bars of CO2. This reservoir of volatiles is adequate to produce a substantial greenhouse effect, provided there is some small addition of SO2(volcanoes) or reduced gases (cometary impact). Thus it seems likely that conditions on early Mars were suitable for the origin of life – biogenic elements and liquid water were present at favorable conditions of pressure and temperature. Whether life began on Mars remains an open question, receiving hints of a positive answer from recent work on one of the Martian meteorites. The implications for habitable zones around other stars include the need to have rocky planets with sufficient mass to preserve atmospheres in the face of intensive early bombardment.


Author(s):  
V. Pelliccia ◽  
C. Pizzanelli ◽  
S. Pini ◽  
P. Malacarne ◽  
U. Bonuccelli

Author(s):  
G.J.C. Carpenter

In zirconium-hydrogen alloys, rapid cooling from an elevated temperature causes precipitation of the face-centred tetragonal (fct) phase, γZrH, in the form of needles, parallel to the close-packed <1120>zr directions (1). With low hydrogen concentrations, the hydride solvus is sufficiently low that zirconium atom diffusion cannot occur. For example, with 6 μg/g hydrogen, the solvus temperature is approximately 370 K (2), at which only the hydrogen diffuses readily. Shears are therefore necessary to produce the crystallographic transformation from hexagonal close-packed (hep) zirconium to fct hydride.The simplest mechanism for the transformation is the passage of Shockley partial dislocations having Burgers vectors (b) of the type 1/3<0110> on every second (0001)Zr plane. If the partial dislocations are in the form of loops with the same b, the crosssection of a hydride precipitate will be as shown in fig.1. A consequence of this type of transformation is that a cumulative shear, S, is produced that leads to a strain field in the surrounding zirconium matrix, as illustrated in fig.2a.


Author(s):  
F. Monchoux ◽  
A. Rocher ◽  
J.L. Martin

Interphase sliding is an important phenomenon of high temperature plasticity. In order to study the microstructural changes associated with it, as well as its influence on the strain rate dependence on stress and temperature, plane boundaries were obtained by welding together two polycrystals of Cu-Zn alloys having the face centered cubic and body centered cubic structures respectively following the procedure described in (1). These specimens were then deformed in shear along the interface on a creep machine (2) at the same temperature as that of the diffusion treatment so as to avoid any precipitation. The present paper reports observations by conventional and high voltage electron microscopy of the microstructure of both phases, in the vicinity of the phase boundary, after different creep tests corresponding to various deformation conditions.Foils were cut by spark machining out of the bulk samples, 0.2 mm thick. They were then electropolished down to 0.1 mm, after which a hole with thin edges was made in an area including the boundary


Sign in / Sign up

Export Citation Format

Share Document